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// The TabGroup item defines a set of tabs consisting of page stacks or
// pages that can be switched between to implement a tabbed user interface.

import QtQuick 1.1
import "." 1.0

Item {
    
    // The currently selected tab.
    property Item currentTab
    
    width: parent ? parent.width : 0
    height: parent ? parent.height : 0
    
    onVisibleChanged: __update()
    onChildrenChanged: __update()
    onCurrentTabChanged: __update()

    function __update() {
        for (var i = 0; i < children.length; i++) {
            var child = children[i];
            var newVis = child == currentTab;
            if (child.visible != newVis) {
                child.visible = newVis;
                if (child.status !== undefined) {
                    if (newVis) {
                        child.status = PageStatus.Activating;
                        child.status = PageStatus.Active;
                    } else {
                        child.status = PageStatus.Deactivating;
                        child.status = PageStatus.Inactive;
                    }
                }
            }
        }
    }
    
}
